YouTube api reference broken due to 404 errors

1) Is this a client library issue or a product issue?
neither, the documentation website

2) Did someone already solve this?
no

3) Do you have a support contract?
no

#### Environment details

- OS: Windows 11
- Node.js version: N/A
- npm version: N/A
- `googleapis` version: 129.0.0

#### Steps to reproduce

1. Visit https://googleapis.dev/nodejs/googleapis/latest/youtube/index.html with Google Chrome v120
2. Click on the buttons on the left menu at the bottom, such as "Classes"
- Nothing happens, and there's no way to see the actual client library API reference.
3. Open the console, you will see some 404 errors for some .js files.